[Samba] ldapsam failover do not work?

[alex at kuklin.ru]

Hello

Got a problem with ldapsam passdb failover.

Samba verson 3.0.22 (debian build).
passdb backend = ldapsam:"ldap://192.168.2.2/ ldap://192.168.2.3/"

For some unclean reason slapd at 192.168.2.2 eventially goes offline. Ex,
 
Aug  4 06:27:36 localhost slapd[31295]: daemon: listen=8, new connection 
on 1023
Aug  4 06:27:36 localhost slapd[31295]: warning: cannot open 
/etc/hosts.allow: Too many open files
Aug  4 06:27:36 localhost slapd[31295]: warning: cannot open 
/etc/hosts.deny: Too many open files
Aug  4 06:27:36 localhost slapd[31295]: fd=1023 DENIED from unknown 
(192.168.2.2)
Aug  4 06:27:36 localhost slapd[31295]: daemon: closing 1023
Aug  4 06:27:36 localhost slapd[31295]: daemon: select: listen=7 
active_threads=0 tvp=NULL
Aug  4 06:27:36 localhost slapd[31295]: daemon: select: listen=8 
active_threads=0 tvp=NULL

Next, i've got

Aug  4 06:27:36 localhost smbd[1180]: [2006/08/04 06:27:36, 1] 
lib/smbldap.c:another_ldap_try(1051)
Aug  4 06:27:36 localhost smbd[1180]:   Connection to LDAP server failed 
for the 9 try!

instead of switching to 192.168.2.3. Domain logons become unavailable 
until slapd is restarted.
The [local] workaround is forcing slapd to restart every hour. 
Nevertheless i want make failover working.

Any ideas?

Thank you.